A fish-like scent can be a sign of an infection, where the delicate pH balance of the vaginal atmosphere is disrupted by an overgrowth of germs. One such usual infection is bacterial vaginosis (BV), and that fishy scent is often elevated after sex and typically accompanied by a rise in vaginal discharge.
2. Ammonia smellhttp://dsg.files.app.content.prod.s3.amazonaws.com/gereports/wp-content/uploads/2016/12/20164023/Lava-Lamp-Alt.gif
Some females find their undergarments stinking of strong ammonia smells after a long day.
The strong ammonia-like scent could be because of urine leaks in the underwear or improper cleansing of the nether regions after going to the toilet or improper underwear product selections that multiply the intensity of the smells.